Most people will stay with what they know, and the ever changing face of MS Office cannot be doing it any good, but the free offerings tend to have a more visually stable user interface.
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Bob Smith
Member of Seti PIPPS (Pluto is a Planet Protest Society)
Somewhere in the (un)known Universe?

considering that OO does exactly the same thing as MSO with a slightly different feel and look, it make OO an easy changeover. You even get the option to save as OO file or MSO. Seems the OO allows people to have more options in the end
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In a rich man's house there is no place to spit but his face.
Diogenes Of Sinope